am335x, guardian: boot stage feedback in headless mode

This patch enables the guardian board to provide feedback
  about the boot stage in headless mode. The on-board led
  would behave in the following pattern

    * U-boot -> GLOW LED
    * Linux  -> BLINK LED [HEART-BEAT PATTERN]

Signed-off-by: Moses Christopher <BollavarapuMoses.Christopher@in.bosch.com>
diff --git a/arch/arm/dts/am335x-guardian.dts b/arch/arm/dts/am335x-guardian.dts
index 5ed2133..b554be9 100644
--- a/arch/arm/dts/am335x-guardian.dts
+++ b/arch/arm/dts/am335x-guardian.dts
@@ -58,7 +58,7 @@
 			label = "guardian:life-led";
 			gpios = <&gpio1 26 GPIO_ACTIVE_HIGH>;
 			linux,default-trigger = "heartbeat";
-			default-state = "off";
+			default-state = "on";
 		};
 	};